| 1 | Their research showed that cells age if telomeres are shortened. | |
| 2 | It would have telomere DNA at the center, and it would have two centromeres. | |
| 3 | She says without telomeres the chromosome and the genes it holds would come apart. | |
| 4 | When the telomeres become very short, the cell starts to malfunction and show signs of ageing. | |
| 5 | But if the telomerase enzyme is very active, telomere lengths are maintained and cells are kept young. |
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